Should Amps be plugged into a power conditioner?

My Pass Labs mono blocks are plugged directly into to separate wall sockets, which is the recommendation from Pass Labs. Other components with less current draw are plugged into an Isotek conditioner. 

I have used  power conditioner for around 17 years I thought it made a difference in the sound quality of my Denon 4308 and the picture quality of my plasmas, (oleds presently) . Denon still gives me phone support and always asks if I'm using a power conditioner and to unplug it and plug it straight into the wall, I have a lot of power surges here with every thunderstorm once the power goes out the unit stays off until I turn it back on. gives piece of middle in the middle of the night when the power is going in and out..

From the info in the preceding posts, it would appear that plugging my amp directly into the mains socket would be preferable. Unfortunately, my mid-century home has ungrounded circuitry in most areas, including my listening space. When the amp is plugged directly, there is a small amount of current flowing through the cabinet that can be felt by touch. I found that by connecting the amp to my  Panamax conditioner resolves this issue. I hope to upgrade the circuitry, at some point, but in the meantime I'll have to use a conditioner for my amp.

I’ve also been very happy with my McIntosh MC500 plugged into my Shunyata Triton/Typhon Combo. I’ve  never had any issues.

 About a year and a half ago I purchased a Furman Elite mostly for the surge suppression. Got tired of unplugging every time there was a T storm. According to the manufacturer, the outlets for power amps had zero limiting on power/current draw, so I even gave up my dedicated 20A circuit for my amp and plugged it into the Furman along with everything else. My system is dead quiet and I swear the soundstage expanded, wider and deeper. I can detect nothing but improvement from this thing, and I no longer freak out about the weather....